Martiniemi
| Name | Martiniemi |
| Type | Tug |
| GRT | 30 tons |
| Country |  Russian |
| Built | |
| Builder | |
| Operator | |
| History |
U-boat attacks on Tug Martiniemi
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 26 Jun 1917 | UC 57 (Friedrich Wißmann) | Sunk | with barges MARIE (87t) and TERVO (58t) in Raumo-Wasa area |
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